[Retracted] Secure Internet of Things Gateway Technology Based on Multicommunication Methods

Table 3

Summary of operating voltage of system peripheral modules.

Voltage level	Module name
5 V	PMIC
3.3 V	3G, RS-485, CAN, NET, Zibgce, RF, Nand flash
1.8 V	3G_USB2.O
Other	GPIO and reset circuit module name